It seems the older (faster single cpu) one is "M9031LL/A" and the newer (slower) one is "M9555LL/A."

What is the deal and is the older faster one still worth getting, because as far as I can see the older one that isn't in production anymore seems to be the better buy as far as single CPU's go, or is there something I'm missing?

He is right about the two different models. When they first introduced the G5's, they have a single 1.6, single 1.8, and a dual 2.0. Each FSB running at half the processor speed. A few months later they changed teh 1.8 to a dual 1.8, still with a 900 FSB. As they updated teh G5 line, they later added a crippled single 1.8 with a 600mHz FSB which they just discontinued. I would go with the older one if I had the choice, it might also be cheaper because it is a few years old.

I have the ability to get one of these older models M9031LL/A with 1.8Ghz @ 900Mhz FSB for $1200. It also comes with the SuperDrive, 512MB DDR400, and a 160GB SATA HD. Those were all stock when the item came out. I think it's a good deal, but I don't know for sure, what does everyone else think?

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